One infrared spectra (1) is given below. (a) Analyze the spectra and tabulate important bands. (b) Circle the possible molecular structure corresponding to the given spectra. Spectra A: -1 4000 2700 cm 2700- 2000 cm ¹ 2000-1600 cm ¹ 1600 - 400 cm 2,5 100 80 60 40 20 Region N " 6 0 OL 4000 (a) COMPOUNDS A OH 3500 -1 3000 B Absorption, cm -1 3,5 4 SPECTRA 1 2500 4.5 CH, 0 CH, C C-CH₂ H H wavelength (um) 5 5,5 6 C Functional group wavelength (um) C- 2000 1800 1600 1400 1200 1000 wavenumber (cm) C-OH CH₂ 7 8 9 10 11 D CH₂CH₂OH Base Value 12 13 14 15 16 800 E 600 CH₂-C-N
Analyzing Infrared Spectra
The electromagnetic radiation or frequency is classified into radio-waves, micro-waves, infrared, visible, ultraviolet, X-rays and gamma rays. The infrared spectra emission refers to the portion between the visible and the microwave areas of electromagnetic spectrum. This spectral area is usually divided into three parts, near infrared (14,290 – 4000 cm-1), mid infrared (4000 – 400 cm-1), and far infrared (700 – 200 cm-1), respectively. The number set is the number of the wave (cm-1).
IR Spectrum Of Cyclohexanone
It is the analysis of the structure of cyclohexaone using IR data interpretation.
IR Spectrum Of Anisole
Interpretation of anisole using IR spectrum obtained from IR analysis.
IR Spectroscopy
Infrared (IR) or vibrational spectroscopy is a method used for analyzing the particle's vibratory transformations. This is one of the very popular spectroscopic approaches employed by inorganic as well as organic laboratories because it is helpful in evaluating and distinguishing the frameworks of the molecules. The infra-red spectroscopy process or procedure is carried out using a tool called an infrared spectrometer to obtain an infrared spectral (or spectrophotometer).
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